Solving One Step Equations
Addition Equations

There are four things that you must remember when solving any equation AND everything must be mathematically correct!


  • Your goal is to get the variable that you are solving for by itself on one side of the equation.

        Example: x = _____

  • To eliminate a term on one side of the equation, you use the opposite mathematical operation.
  • Whatever you do to one side of the equation, you MUST do to the other side of the equation. This keeps the equation balanced!
  • Always check your answer by substituting the value back into the original equation.

Let's take a closer look at the three rules above in an example problem.


Example 1: Addition Equations


Solving one-step addition equations

Here we have two more examples of how to solve a one step addition equation! I've even thrown in a few negatives, because that can sometimes confuse you, especially if you don't remember your addition integer rules or your subtraction integer rules.


Example 2: One-step Addition Equations


Solving addition equations

If you are the type of student who prefers to "see and hear" how this problem is solved, then watch the video below for a step-by-step solution.



Example 3: Working with negatives



Addition equations are pretty easy to solve. Remember that the opposite of addition is subtraction, and whatever you do to one side, you must do to the other side!


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